The First Sale doctrine has nothing to do with copyright
infringement of GPL-covered works

Samsung and several other defendants disagree with you

The defendants, as is proper, throw up every possible legal
defense against the claims of the plaintiff. They would be
remiss not to do so. That does not mean that their claims
are valid, and it will be up to the plaintiffs to show why
they are not.
It's odd the way you seem to believe that ordinary lawyering
somehow proves that your false beliefs are true.